Some of my clients:

Boijmans van Beuningen
Creative Factory
Startpeople
Musica Republica
Maassilo
Restaurant Eendracht
Omerta
Now & Wow
Art Included
IPmanagement
Mothership
Factory 010
ZaalCafeRestaurant De Unie
Arminiuskerk
Mobile Arts / De Parade / New Island Festival '00/'09
Willem de Kooning Academie
Restaurant Eendracht/Kunsthal Kookt
International Filmfestival Rotterdam
ECHOECHO
Showroom Mama
DEAF
De Strip
Venour
Apenkooi/Buutvrij
Now&Wow
Southern Comfort
Lastplak
Aanwezig/Sober Industries
Vief/Vuig Rotterdam

Ass Ass
Vive la Fete

As a DJ, KOSA has performed at venues such as:

Extrema Outdoor (NL, BE), Solar Weekend, Off-Corso, Nighttown, Trouw, Club 11, Club 8, Watt, Waterfront, Panama, Bar Bar, Heidegger, Kunsthal, Calypso, Supperclub, Sugarfactory, Rotown, De Unie, Schouwburg Rotterdam IFFR, Camping, Winkel van Sinkel, De Beurs, Club zonder Concessies, WDKA, Lantaren/Venster, Paard van Troje, Tivoli, De Henk, Plastik Milan, Engels, Vagabond, and various tekno festivals across Europe: Germany, Czech Republic, France.......